Ways of referring to entire Array row or column

Is there any way to refer to an entire row (or column for that matter) of a 2D Array, or must any reference only be to a single item/position i.e. array(1,1) etc ?

For example, I if I have a 10 row x 10 column array and I want to join all of the values in each row, can I refer in some way to each array row to do that, or must I loop through each item to join them up?